octagonoctagon /ˈɑktəˌgɑn/ noun [countable] 
math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective: an octagonal room
math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective: an octagonal room- market leader
- market-led
- market maker
- marketplace
- market power
- market price
- market research
- market revolution
- market share
- market supply curve
- market supply schedule
- market value
- marking
- markka
- Mark, Saint
- marksman
- marksmanship
- mark-up
- Marley, Bob
- marlin
- Marlowe, Christopher
- marmalade
- marmoreal
- marmoset
- marmot